Mapping of QTLs Controlling Panicle Length and Effective Panicle Number of Rice
Mapping of QTLs Controlling Panicle Length and Effective Panicle Number of Rice作者机构：Guizhou Rice Research Institute Guiyang 550006 China Guizhou Seed Management Station Guiyang 550001 China
出 版 物：《Agricultural Biotechnology》 (农业生物技术（英文版）)
年 卷 期：2016年第5卷第5期
页 面：4-7页
基 金：Supported by Science and Technology Project of Guizhou Province(G20124010) Science and Technology Project of Guizhou Province(20155003-3) Service Action Plan of Scientific Research Institutions in Guizhou Province(LH20144005) Construction Project of Modern Agricultural Industry System in Guizhou Province(GZCYTX2015-06)
主 题：Rice QTL Panicle length Effective panicle number Yield
摘 要：Panicle length and effective panicle number of rice are closely related to yield. In this experiment, indica V20B as female parent was crossed with javanica CPSLO17 as male parent, recombinant inbred line （RIL） populations were obtained by single seed descent method, and with the RIL populations as mapping populations, QTL mapping and analysis were performed to the two panicle traits, panicle length and effective panicle. A high-density genetic map was constructed with SLAF labels, interval mapping was performed by software Map QTL5 under the threshold of 3.9, and 7 QTLs were detected on 3 chromosomes in total. Among the 7 QTLs, 5 QTLs controlling panicle length （qPLI-1, qPL1-2, qPL6-1, qPI_6-2 and qPL6-3） were located on chromosomes 1 and 6, respectively, and showed the contribution rates of 6.41%, 22.22%, 6.15%, 12.24% and 13.01%, respectively, their effect-increasing loci were mainly from CPSLO17, and qPL1-1 is a new QTL; and 2 QTLs controlling effective panicle number （qPN1 and qPN4） were located on chromosomes 1 and 4, respectively, and exhibited the contribution rates of 13.15% and 8.18%, respectively, and the effect-increasing loci were from parent V2OB. The marking of these loci lays a foundation for further cloning of genes controlling panicle length and effective panicle number and molecular marker-assisted selection.
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